257750002 has 4 divisors (see below), whose sum is σ = 386625006. Its totient is φ = 128875000.

The previous prime is 257749993. The next prime is 257750047. The reversal of 257750002 is 200057752.

257750002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 220552201 + 37197801 = 14851^2 + 6099^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64437499 + ... + 64437502.

Almost surely, 2^257750002 is an apocalyptic number.

257750002 is a deficient number, since it is larger than the sum of its proper divisors (128875004).

257750002 is a wasteful number, since it uses less digits than its factorization.

257750002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128875003.

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 257750002 is about 16054.5944202898. The cubic root of 257750002 is about 636.4039879558.

The spelling of 257750002 in words is "two hundred fifty-seven million, seven hundred fifty thousand, two".